SL28
- Name
- SL28
- Common name
- Arabica
- Primary origin iso3
- Kenya (KEN)
- Genetic group
- Bourbon-related (Scott Laboratories selection)
- Stature
- tall
- Bean size
- large
- Minimum altitude (m above sea level)
- 1200
- Maximum altitude (m above sea level)
- 2100
- Scientific name
- Coffea arabica
- Alt names
- SL 28
- Yield potential
- medium
- Quality potential high alt
- exceptional
- Clr resistance
- susceptible
- Cbd resistance
- susceptible
- Nematode resistance
- susceptible
- Breeder
- Scott Agricultural Laboratories
- Description
- Kenyan Scott Labs selection (1930s) from Tanganyika Drought Resistant population; drought-tolerant, exceptional cup potential. Source: WCR SL28.
- Notes
- WCR: Bourbon genetic group confirmed by recent tests.
processing
- Washed · Common
- Natural · Common where climate allows
regions
- Nyeri · Kenya (KEN) · 1700–2200
- Kirinyaga · Kenya (KEN) · 1600–2100
- Kiambu · Kenya (KEN) · 1500–2000
- Muranga · Kenya (KEN) · 1400–1900
Other origins
Malawi (MWI), Tanzania (TZA), Uganda (UGA)
Sensory notes
- Citrus · typical
- Berry · typical
- Floral · typical
Species sensory notes
- Chocolate · typical
- Fruit · typical
- Nut · typical
- Caramel · typical
- Floral · typical
- Citrus · typical
- Body tags
- light, medium, full
- Aroma tags
- floral, citrus, chocolate, caramel
- Acidity tags
- citric, malic, tartaric
- Flavour tags
- chocolate, fruit, nut, caramel, floral
- Sweetness tags
- sweet, syrupy, caramel, honey
- Mouthfeel tags
- smooth, creamy, silky, full
- Balance tags
- balanced, unbalanced
- Complexity tags
- simple, complex
- Aroma intensity
- 8
- Flavour intensity
- 7.5
- Acidity intensity
- 4.5
- Notes
- Migrated JSONB arrays from coffee beans Arabica — typical descriptors, not exact science.
Species
Arabica is the dominant specialty species, originating in the southwestern Ethiopian highlands (and historically Yemen). Plants prefer higher elevations and milder temperatures; cups typically show brighter acidity and more aromatic complexity than canephora. Legacy coffee_beans ranges below are SPECIES-LEVEL TYPICAL bands migrated as-is — not universal.
Sources: WCR Arabica history; FAO/ICO species framing. Cert booleans from legacy coffee_beans (organic/fairtrade/RA=true, specialty_grade=true) are lot-level marketing flags — NOT stored as species truth. Optional soft link: commodities.name='Coffee' (not set in seed).
- Caffeine content min
- 1.2
- Caffeine content max
- 1.5
- Moisture content min
- 10
- Moisture content max
- 12
- Density min
- 0.55
- Density max
- 0.65
- Screen size min
- 16
- Screen size max
- 20
- Yield min
- 1
- Yield max
- 2.5
- Bean weight min
- 0.09
- Bean weight max
- 0.12
- Roast level min
- 1
- Roast level max
- 3
- Acidity level min
- 5
- Acidity level max
- 6
- Cupping score min
- 80
- Cupping score max
- 90
- Review rating min
- 7
- Review rating max
- 9.5
- Aroma intensity
- 8
- Flavour intensity
- 7.5
- Acidity intensity
- 4.5